Sun Ba (before 235[1] - September or October 250), courtesy name Ziwei, was an imperial prince of the state of Eastern Wu during the Three Kingdoms period of China.
He was the fourth son of Sun Quan, the founding emperor of Eastern Wu.
After discussing among themselves, some officials strongly urged Sun Quan to ensure that Confucian rules of propriety were followed and upheld.
[6] The official Yang Dao (羊衜) wrote a memorial to Sun Quan, urging the emperor to lift the ban on his sons interacting with the outside world.
Yang Dao also explained to Sun Quan that isolating the two princes from the outside world might make people think that Eastern Wu was experiencing internal instability and allow rumours to breed and spread.
Two opposing factions also emerged from among Sun Quan's subjects: On one side, Lu Xun, Zhuge Ke, Gu Tan, Zhu Ju, Teng Yin, Shi Ji, Ding Mi (丁密) and Wu Can believed that Sun He was the rightful heir apparent so they supported him.
As the power struggle intensified, Sun Quan grew tired of it and told Sun Jun that he was worried that the power struggle would end up in a civil war like the one between Yuan Shao's sons.